:root {
  color-scheme: light dark;
  --ink: #1a1a1a;
  --muted: #555;
  --bg: #faf9f7;
  --accent: #b45309;
  --border: #e5e2dc;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f2f0eb;
    --muted: #a8a29e;
    --bg: #121110;
    --border: #3d3935;
  }
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial,
    sans-serif;
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
}
main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}
header {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}
h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
  letter-spacing: -0.02em;
}
.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}
h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.75rem;
}
ul {
  padding-left: 1.25rem;
}
li {
  margin: 0.35rem 0;
}
a {
  color: var(--accent);
}
footer {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--muted);
}
.nav {
  margin: 0 0 1rem;
  font-size: 0.95rem;
}